电磁谐振腔electromagnetic resonant cavity：微波波段的谐振电路。通常在波导的两端用导电板短路而构成的封闭腔体。
对TEM模，分析了内导体形状、位置对谐振腔内电磁场分布的影响；以及它们对启动和稳定工作的影响。
For TEM model in coaxial resonant cavity, the influence of shape and position of inner conductor on electromagnetic field, start-up and steady work was studied.
结果说明：沟槽位于谐振腔中间时，开槽及其尺寸对电磁场的对称性没有影响，但对电磁场的大小有影响。
The result of numerical simulation is as follows: 1 the groove located at the middle almost does not change the symmetric distribution of electromagnetic fields, but affects the magnitudes.
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